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Self-study IT network Linux load balancing video tutorial

Course Intermediate 11332

Course Introduction："Self-study IT Network Linux Load Balancing Video Tutorial" mainly implements Linux load balancing by performing script operations on web, lvs and Linux under nagin.

Shangxuetang MySQL video tutorial

Course Advanced 17635

Course Introduction："Shangxuetang MySQL Video Tutorial" introduces you to the process from installing to using the MySQL database, and introduces the specific operations of each link in detail.

Band of Brothers front-end example display video tutorial

Course Advanced 11348

Course Introduction："Brothers Band Front-end Example Display Video Tutorial" introduces examples of HTML5 and CSS3 technologies to everyone, so that everyone can become more proficient in using HTML5 and CSS3.

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Ways to fix issue 2003 (HY000): Unable to connect to MySQL server 'db_mysql:3306' (111)

I recently tried to containerize my FastAPIPython server (also for replication/doubling purposes). Before, I had just a MySQL server in a Docker container and everything was fine, but when I also made my web server a service, it couldn't connect to the MySQL server, so now the application doesn't work. Below is the code snippet of the server database initialization connector in the application fromfastapiimportFastAPIimportmysql.connectorapp

2023-09-05 11:18:47

Experiment with sorting after query limit

So this is my first question here, please forgive me if something is wrong. I'm trying to make a sort query based on constraints. So there is a Customers table with 90 records. I want to first perform a query limited to 3 records, and then sort the results of this query by a column called ContactName. I think this might be a nested query. Nested queries run fine in SQLServer, but don't know how to implement it in MySQL. Limit query: Select*fromcustomerslimit

2023-09-05 14:46:42

CSS Grid: Create new row when child content overflows column width

I have a two column layout based on CSS grid. When the content of the second column exceeds 1fr I want to create a new row. As it currently stands, the content simply overflows the column. One requirement of this layout is that the items in the right menu column are in one row. I achieve this with: .right-menu{...grid-auto-flow:columndense;...} If I remove the grid-auto-flow attribute, the overflow stops. However, the items are now stacked into multiple rows, which is not what I want. I also tried converting .ri

2023-09-05 15:18:28

PHP full text search functionality using AND, OR and NOT operators

Newbie question: I'm trying to implement a full text search on a search string using php and eloquent. $searchstring="+(victimsuspect)+crime-covid";$searchresult=RssItem::whereRaw("MATCH(description)AGAINST('$searchstring'INBOOLEANMODE)")->ge

2023-09-05 15:06:32

Shortest way to convert all PHP types to string

I'm writing a general system that I hope can one day be applied to fields like medicine (i.e. it's "scientific"). I think the best way is to represent all the data in php with strings (true will be "true", false will be "false" and so on). The reason for this is that in php any value has a unique string representation (such as the php code itself). I post this question to speed up the design process of this program. Some values are easily converted to strings: numbers, booleans, etc. Some are not easy: objects, arrays, resources. I think the transfer object and

2023-09-05 15:34:44

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Xiaomi Mi 15 Ultra appearance exposed: ceramic material surprise appears

Course Introduction：According to news on August 20, the blogger Digital Chat Station revealed that the front of the Xiaomi Mi 15 Ultra engineering phone has a 2K ultra-narrow and equal-depth slightly curved screen. The middle frame is designed with metal right-angled edges, and the rear is centered with a large round lens. There are a total of 4 cameras. Engineering machines are made of plain leather, fiberglass and ceramics. This new product focuses on imaging. According to previously revealed information, Xiaomi Mi 15 Ultra is equipped with Samsung ISOCELL HP9 periscope telephoto lens. 1. This sensor is equipped with a 1/1.4-inch outsole and 200 million pixel resolution, which can capture images with clear details. 4x4 pixel binning technology ensures the output of 12-megapixel clear photos in low-light environments, with a single pixel size of 2.24μm. ISOCELLHP9 adopts high refractive index microlens technology and enhanced photosensitive energy

2024-08-20 comment 0 1160

HiVi M80W 2.1-channel desktop Bluetooth speaker 2599 yuan

Course Introduction：HiVi Huiwei M80W 2.1-channel desktop Bluetooth speaker will have a discount of 2,599 yuan on March 8. The price is a record low, and friends in need can buy it. HiVi's M80W is a flagship desktop active 2.1 speaker system that allows you to immerse yourself in high-quality music enjoyment. This system includes two satellite boxes and a subwoofer. The satellite boxes use a 4-inch mid-bass unit and a 20mm metal dome tweeter to form a two-way, two-stage sealed design, providing clear and moving sound quality. The subwoofer is made of durable POLYPROPYLENE material and large R rubber ring, which can withstand large dynamic working environments, and is equipped with an adjustment knob on the back to fine-tune the sound to meet your personalized needs. M80W supports via WLAN

2024-03-05 comment 0 604

Xiaomi's top imaging flagship is here! Xiaomi 14 Ultra highlights summary

Course Introduction：Recently, blogger Panda Jibalan posted a photo of the lens module of Xiaomi Mi 14 Ultra on social platforms. As can be seen from the photo, the machine continues the circular lens module design of the previous generation Xiaomi Mi 13 Ultra, Leica Summilux The sign is clearly visible. The aperture parameter of the main camera is f/1.63-f/4.0, and the aperture parameter of the periscope lens is f/2.5. In addition, the machine is also equipped with a 3.2x upright telephoto and a 122° ultra-wide-angle camera, both of which are 50 million pixels. Based on previously revealed information, Xiaomi Mi 14 Ultra will be equipped with Qualcomm Snapdragon 8Gen3 processor, equipped with a large 5180mAh battery, support 90W wired fast charging and 50W wireless fast charging, and may also use a single-point ultrasonic finger.

2024-01-31 comment 0 1025

How to import bills in Wacai Accounting

Course Introduction：As an extremely practical accounting software, Wacai Accounting can provide you with efficient and convenient services, whether it is daily expenses or various accounts. Moreover, the software is equipped with a wealth of materials and tools, allowing you to easily record every account anytime and anywhere, while also helping you manage your income and expenditure in an orderly manner. So many users still don’t know how to import their bills into the Zhangtou of Huacai Accounting, so this tutorial guide will bring you a detailed guide introduction. Users who want to know more, please come here Follow this article to find out! How to import bills into Wacai Accounting? 1. First, we open the [Wacai Accounting APP] and click to enter; 2. Secondly, select [My] and click to enter; 3. Finally, we select the [Bill Import] option and click

2024-03-19 comment 0 405

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